12145386 has 32 divisors (see below), whose sum is σ = 26956800. Its totient is φ = 3616880.

The previous prime is 12145379. The next prime is 12145387. The reversal of 12145386 is 68354121.

It is not an unprimeable number, because it can be changed into a prime (12145387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2335 + ... + 5453.

It is an arithmetic number, because the mean of its divisors is an integer number (842400).

Almost surely, 2^12145386 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12145386, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13478400).

12145386 is an abundant number, since it is smaller than the sum of its proper divisors (14811414).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12145386 is a wasteful number, since it uses less digits than its factorization.

12145386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3194.

The product of its digits is 5760, while the sum is 30.

The square root of 12145386 is about 3485.0230989191. The cubic root of 12145386 is about 229.8637251964.

The spelling of 12145386 in words is "twelve million, one hundred forty-five thousand, three hundred eighty-six".